Pierre boimare



No. 608,826. Patented Aug. 9, I898. -P. BDIMABE.

FURNACE.

(Application filed Nov. 24; 1896.)

(No Model.)

t Q {i THE NORRIS PETERS c0, PHL'JTO-LITNQ, wnsumsmn. u c.

Warren States Patent Urethra,

PIERRE BOIMARE, OF PARIS, FRANCE.

FU RNAC E.

SPECIFICATION forming part of Letters Patent No. 608,826, dated August9, 1898.

Application filed November 24, 1896. Serial No. 613,250.

(No model.) Patented in France September 18, 1895, No. 250,627;

in England Decemb 11,1895,No. 23,778; in Belgium December 11, 1895, No.118,816, and in Germany November 29,

To Ml whom it may concern:

Be it known that I, PIERRE BOIMARE, captain of a merchant vesselnavigating the high seas, of 81 Rue de Provence, Paris, in the Republicof France, have invented certain new and useful Improvements inConnection with Furnaces, (for which I have obtained Letters Patent ofFrance for fifteen years, dated September 18, 1895, No. 250,627, andwhich was patented to my assignees, Kahn, Viollet 82: Fox, in GreatBritain December 11, 1895, No. 23,778; in Belgium December 11, 1895, No.118,816, and in Germany November 29, 1896, No. 94,442,) and I do herebydeclare that the following is a full and exact description thereof,reference being made to the accompanying drawing.

This invention relates to improvements in connection with furnaces, andhas for its objcct to provide for a more perfect consumption of smokethan heretofore, the said improvements being applicable for use withevery variety of furnace.

The principle of my invention consists, essentially, in heating the fuelfor preliminary distillation of the carbon before its introduction ontothe grate. The chamber wherein the preliminary distillation of thecarbon takes place is provided within the wall of the furnace, and thefire-box abovethe grate is wholly unobstructed.

The accompanying drawing represents, by way of example, a verticalsection of a glass-furnace having my invention embodied therein.

According to my invention the passage through which the fuel is passedopens into a chamber b Within the wall of the furnace, the said chamberbeing on a plane above that of the grate and to one side of the fireboxabove the grate, the said chamber being provided with a horizontalbottom to retain the fuel until it is in condition to be forced onto thegrate. In front of the chamber Z) the said passage is divided into twoparts by a horizontal partition 0. The space underneath above thepartition 0 serves for the introduction of the fuel into the chamber 1).The fuel is fed into the chamber 1), where it is subjected to a gradualincrease of temperature by reason of its contact with the hot gases ofthe grate and with the walls of the furnace. Distillation takes place,gases be ing given off and burned on their passage over the grate. Atthe end of a certain interval of time (which is variable, but may beeasily determined experimentally once and for all for each kind offurnace and for all kinds of fuel) the fuel deprived in this manner ofgas is raked or pushed onto the bars 9 of the grate. A stoking-iron isintroduced, when required, into the space an under the partition 0, soas to lift and stir up the fuel during its heating in the chamber 1) forthe purpose of permitting the heat to be easily distributed throughoutthe whole mass and of allowing the gases generated to escape withgreater facility.

I am aware that it has heretofore been pro posed to heat coal in achamber before passing it into the fire-box and that furnaces for thispurpose have been described heretofore; but such descriptions have notdisclosed the special features of improvement herein set forth andclaimed.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- In a furnace the combination, with agrate and fire-box above the grate, of afuel-distillation chamber 1) inthe wall of the furnace wholly above and at one side of the grate thebottom of said chamber being horizontal so that coal will rest thereonwithout falling into the combustion-chamber, and there being anunobstructed opening between chamber b and the combustion-chamber,whereby fuel can be pushed horizontally into the combustion chamber.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

PIERRE BOIMARE.

Witnesses:

Gnonens LAnRnNs, EUGENE "Warrior,

